Hydrographic Department of the Admiralty, under the superintendence of Vice-Admiral Sir John Edgell, KBE, CB, FRS, Hydrographer. 2nd ed., March 1944. Restricted. Issued for Government Use Only. (Vii) + 352 pp., profusely illustrated with photographs, coastlines & charts (cold.). Blue cloth ring-binder, 26 x 22cm. Binding marked & extremities rubbed ; o/w V.G. Originally compiled in April 1943, this second edition of March 1944 has been enlarged by the addition of some 200 new pages, extending the scope of the book northwards to include the Thames Estuary and the Bristol Channel, together with additional Chartlets of small ports on the French Coast. Obviously, the Admiralty were preparing for the invasion of German-occupied Europe : D-Day, June 1944. Tide Tables are for 1944, and descriptions are given for tides and tidal streams in the English Channel. Sailing Directions, Ports and Anchorages on the French coast are given prominence, plus panoramic views of the Channel Islands (then under Nazi occupation) and the North coast of France. Navigable distances in sea miles are given for the whole area, and English and French buoyage systems explained in coloured illustrations. Headlands, coastlines, etc., are extensively covered, and numerous coloured charts provide navigation guides to countless ports, harbours, inlets, bays, beaches, etc., together with dangers of approaches, sailing directions, facilities, safe anchorages, tidal streams, and general remarks. Many photographs are also included. The original editions for 1943 are scarce ; this second edition in use on D-Day 1944 is VERY SCARCE.